Wiring machine



July 18, 1933. p NHNGLE 1,918,552

WIRING MACHINE Filed Sept. 8, 1931 3 Sheets-Sheet l INVENTOR Jase 2h RMz'ng/e igr lv ATTORNEYS Julyl8, 1933. ,LRWNGLE 1,918,552

WIRING MACHINE Filed Sept. 8, 1931 I5 Sheets-Sheet 3 INVENTOR. W640i? lug/e,

ATTORNEYS 20 twisted .and properly fiattened,lejects thejar,

" notch 251 (see Fig. 14)". Said clampmemb'er 49 likewise fcar'ries'a threaded rod 51 tofthe 51is secured-tn the member 49 by win'g nut 53, the arrangement'being. such that said r'od many years, the wires 34 have been secured tov I the jars by a manual operation. The wires 34, carrying the cars 35, and formed to a gen-' eral U-shape, are positioned on the jars in the manner illustrated in broken lines in Fig; 12.

An operator then grasps the projecting ends- 36 and 37 bendsthem toward each other-until they overlap, and then, grasping the "overs lapped wire'ends with a pair of pliers,*rotates the'jar, while holdingthewire-ends against rotation therewith. The operator then bends i the projecting ends of the twisted wires backwardly toward the surface of the jar.

When working with a machine'of the character illustrated herein,"the operator merely places the U-shaped wire in positionupon the jar neck; and thenfinoves' the j'ar across the platform '23 into cooperative relationwith thev machine. All of the restis done by the machine which, after the wires havefbeen and Starts the Same i i y down the chute24.' r.

A bracket 38 carried bythe collar 28 is provided with a'pair'of spaced, substantially parallel arms 39 .andf40. Adjacent its free end, the arml39 is formed with an aperture in v which is"'o'scillably mounted an element 41 A portion'42 ofsaid element 41 (see Fig. 2) islo'c'ated'belQW the'arm39 and is bifurcated,

as shown. That'portion of element 41 which is plositioned abovethe arm 39 carries a bell crank-lever 43 the two armsof which are indicated 'at'44and 45;

; A member 46 is pivotally secured, by means of a pin 47,betweeii the furcationsof the por- A The finger 5.0 carriesja p1n'54 fora purpose 'later 'to1 be described, and said-pin is adjust- I togapin 56' carried ad acent theex'tremity of said 'portlon '58.

I 5 [A bell prank l m 59 hat ng ime to a tion 4210f theeleinent 41. To the arm 45 of the lever 43 is pivotally secured, by a pin 48, a clamp 49in whichis receivedafing'er 50 formed at its free end with a wire-receiving lower end'of which is secured an arm 52,the free end of'said arm beingbentinwardly, as is clearly shown in the drawings. 'Said rod 51' may: be'clamped against rotationwith respect to'th member 49, or maybe a j te rotatablywith respect .to said member 49.

ableaxially; t I Y A tension "spring 55 is secured atflits one end to said member 49 and at itsoppo'sltef end h rm 440i the Bell crankle'ver43p e/a m 410 is-likewise apertur'ed adjacent its'free end, and an element 57. is oscillably mounted in said pe1 ture Said element 57 i'spro'vided with a portion 58positionedbelowthe arm 40,-and a member-62ispivotally secured {by a pin 63Ibetwe'en the fur'cations of 61 is secured to said element 57 and a pin 64 pivotallymounts'upon said arm 61 a clamp member 65 in which is received a finger 66 similarto the finger 50 A rod 67 carries an arm 68 similar to the arm 52, and said rod 67 is secured to the element 65 by a wing 1111669 in the manner)above fldescribed with" respect to the rod 51'. I i A's is'clearly shownin Fig. 5, the arms 52. and 68 project toward each other and normally overlap slightly. vA tension spring 70 I has its one end'secured to the member 65' and has its opposite end secured to a pin 71 adjacent the extremity of the arm '60- of hell crank lever 59;; Y

pivoted, as at 74, said rod 73 being secured to the member 46. 'A-rod 7 5 is secured to the.

member 62 and is pivoted as at 76 to theop posite end of thecross 5headf72, Obviously,

movement of the crosshea d 72 toward the rightor left asvi'ewed in :Fi'g's'Q5 to .7 will the effect oscillation of the elements '41 and 5.7,

the pin The twister head is: indicated generally, byv the reference numeral 81in Fig. 3, and is illustrated-insome detail in Figs. 8 to-11 inclusive. This twister head comprises the sleeve 82 formed internally with threads 83, and externally threaded at" its one end forcooperation with the interee 'Fi'gs.2 and 14.) i

nally threaded skirt 8410f a member/85 to" I which isse'cllre d a, stem 86 by means of a lock nut 87. A'housing 88 encloses said sleeve and said member, said housing being formed at 1 its one end jwith an inwardly turned vflange.

89 cooperating with a forwardly facing shoulder 90 onthe sleeve'82. The rear end of the housing 88 is closedby an element 91 formed witha pairiof oppositely disposed slots'92 for a purpose'later to be described.

-- I Cooperatively associated with thesleeve82 is a gripper head comprising an element .93 formed withv a'reduced neck 94, said neokbe 1 ing externally threaded for engagement withv the internal threads of a socket 252 formed 82. The element 93 is formed with a pair inan end. of'a member 95, said nr1emb1erf95 being provided with external threads en-- gageable with the threads 83 of the :sleeve' of substantially diametrically opposed wirereceiving slots 96 an'df97.f The open ends of the slots 96 and 97 are circumferentially directed, and the element 93 is formed with The [slots 96 and 97 are] axially-protected in a forward direction by tongues 99 and 100,

respectively. The element93 is formed with 1 e0 'To one end of across head 72 a rod 73 is' 12f forwardly directed cam surfaces 98 leading from the open ends of said slots-96 and 97.

I it is to be understood that guide means of any desired character will be provided to precomprising agjcyl-inder 166 in which is oper-f vent undue-lateral I motion of reciprocating parts;- 1 p I Y bracketf165 (Fig. 1) suitably secured tothe collar .22 carries .a fluid pressure motor ativel-y received. a piston 167 ig. 14) provided with a stem 1'68,- theouter endof said StemJbeing' guided and supported in a bearhag-169 'carriedbyth'e 'platform23' (Fig. 2)

"A collar 170 is 'adjustably' secured to said '1 stem168, andsaid collarcarries an arm 171 projecting-upwardly through a slot 172,

formed in theplatiorm 23,s'aid armcarrying, ata point: above the surface of said platform 23a1yoke 173. The function of this'mecha- .nism will-bedescribed hereinafter;

Thepresentgmachine is adapted i or opera-- tion by fluid under p ressure,'and a: suitable source of pressur'e fluid (not shown) Will, of

f course, be'provided, Referringto Fig. 14-, it will be seen that I have illustrated a main line 174- leading from the fluid source and having-connected: thereto a'conduit175'c0n 'nectednto' the'inlet port'176 ofthe valve cas- 1 ing 7 9 (see'Figs. 1 and 6).- Said casing is likewise provided with-an exhaust port 177' and avalveoperating' port 17 8." Said-valve casing. is -further provided; with] a port 255 "which. ,islocated substantially ;op.posite the port176. -Within said casing is. operatively received a piston valve179, formed with a circumferential groove180with which com- 2 municates-a longitudinally extending branch 181. Said valve;179.-is.connectedtothe stem and is reciprocablein the casing-79 "The V groove 180 issopositioned thatfat oneextremity-jof the strokejof said valve:179' said. grooveregisters with the exhaust port- 1177 While the branch 181 isso located as-to 'prov videicommunication, in all positions of the valve 179, between the groove .180 and' the port 255. When :thevalve 1 79 is -moved downwardly in the casing 79, as viewed in I ig. 14, the groove 180'is moved: out of reg istry. with the exhaust port, 177 and into registry with the inlet port- 176, whereby communication is provided between the conduct1TZ5 and a conduit 183connected tolsaid port 255. The valve 179 isprovided -with a second gcirctm ferential groove 182.11

., Theoonduit-18'3is likewise-connected to an inlet port 1840f the rotary valve casing 124,

;( Figs. 1, 3,- an'd5), and'abra-nch 185 leading fromthe-Cohduit 183 is connected to a port .186 in. the cylinder-:78 (Figs-'1, 2,:and 5). Said, cylinder 7 8- operativel'y receives a piston 187 tOf WhlCll is connected; the stem 77 which carries. the cross head 72.}2A1coil spring 189surroundssaid stem 7 7.and abuts at its one end against the upper surfaceflof the piston 187-and at its opposite end against [the closure head of the cylinder 78, -whereby said piston 187 isnior'mallyheld i t he posicylinder-7 8 through the passage 188;-

t'ion illustrated in F ig. 14. A passage 188 provides communication between that ,portion of the interior of the cylinder7 8 above the piston 187 and the atmosphere, and the port 186 is located below said piston 187-. a It willlbe obvious that. fluid under pressure sup} h,

plied through the port 186-will cause upward movement of the piston "187 as'view'ed in Fig, 14:,thus compressing the'spring 189-and forcing the air within the cylinder 78 out through the passing 188; and that, after the. port 186 is opened to. atmosphere, the spring; 189 will return thepiston 187to the position illustrated'in F ig. 14, air being'drawnintothe The rotary valve casing12is formed with a'longitudinall-y extending bore 190 p rovided with a plurality of branches'191,-.192, and 193. 'fThe valve l23-"is'p-rovided with plu rality-of ,angularlyand axially'spaced transverse passages194, 195, and .196. The pas sage 194is-so positioned that, in oneposition of the valve 123, said passage 194- establishes communication between'the branch .191 and port 197 in-said casing 12 1 the passagellfi'. is so positionedthat in another positionof, the valve 123, said passageestablishes com-' municationbetween the branch 192 and= port 198; andthepassage 196 isso positioned that,

instill another" position. ofthe valve 123, said passage 196 establishes iconnnunica'tion between-the branch 193 and aport 199.

Aconduit 200 is. connected itsone end. to said port199 and its opposite end to a port 20-1 formed in aclosu're plug for an end of a-valve casin 202 Fi s-1 and'3 l' said valve casing being provided with a second port-203, separated "from said port 201-by a valve seat with which cooperates a valve 2051-. Said valve 2 04 carries a ste1n-205 projected outwardlyof the casing-202, and an actuating lever 206 cooperates.with "the projecting portion of the'stem 205, saidlever being pivoted at 207 to said I casing 202.. A compression spring 2o8 engagess'aid valvel204 and biases the same toward closing association with the seat formed :in the casing 202.. It will be obvjious that rotation. of the lever 206 in a clock- .wisedirectionabout its pivot 20'? will depress.

the valve 204', compressing thespring 208 and establishing". communication;between the ports201 and 203 and that,ywhen said lever 206 is' released, the spring 208r'willreturn the v-a-lve204 to. the illustrated.position in which communication between theports201 and 203 is closed.

. ,InFig. 14, Ihave shown.thelever206in ,"dlrect contact-with the upper'end of the'stem 205.;[1 prefer, however, to use the arrangeme'nt illustrated in Fig. 3 in which thelever formed; and a pair ofexhaust port's 21 and 215" are formed; in a, wall of the casing 211 substantially opposite the ports 212 and 213. Said easing is likewise formed iithfen inlet port 216 with whichconirnuiiicates e branch 217 of a conduit 218 "connected to the fluid Within said casing 21119 1116 111118615 a piston valve'219 of well'known form,sa,idvalvebeing so constructed that, the position innstrated, communication is established between the inlet port 216a nd the outlet port 213, and

between the outlet port 1212, and the exhaust port 215;"whi1e, in its'oppositeposition, said valve establishes communication between the inlet port 2l'6jandthe outlet port'212 be -1 tween theoutletport and the exhaust v port 215';

A conduit 220 connected to the u 014212 end toa'p'ort 221 fo 'nied'in the low; 7 61 end ofthemain fluid pressure motor cylin der113 (Figs; 1 and 3) and aconduit; 222 is connecte d to the outlet port 213end to a,

port 223 in theupper end of saidlcylinder 113. A-condnit 224'is connected to the ac.

t-ueting port 214 andtoone end of e passage 225 traversing a projection 226 formed at the upperend of thecylinder 113'. A conduit- 227 is connected to the opposite end of said passage 225 and to said branch 217 The piston'rod'115 intersects, and normally closes said passage 225, butseid rod is formed, "at a point adjacent thepiston 114, with afltrensverse passage 228therethroughp It will be obvious that, when said passage 228 .regis ters with thepasszig e 2 25,, communication will be established between f the source ot fluid under'pressu ffiend the actuating port 214 of the asing 211. 1 1

A conduit 229 has its one end cbnn' et'jd 1e the port197of-the italve ca sing 124, and the opposite end of said conduit 22,) is connected to (one actuatingport 2300f a pistonjvnlve casing 231. (Fig. 1) said easing 231 being substantially identical with "the casing, 211;:

Said casing'231 isprovided'with the actuating ports 230 and 232, the outletports 2 4 3 and exhaust ports 241 and 242,: andinlet port 238. A conduit 233 connects the port 23.2 with one end of a passage234l traversing a 'sleevei235 formed on the cylinder 166, (Figs,

1, 2, 5 and, 6) and; 00111111111236 connects the opposite end of said;passage v 234 with the conduit 218. L Thepa ssage 234 is"contro11ed by the piston rod;1 68 said n piston rod being formed with a transverse passage 237edept ed, in one position of thle. piston 167, to register with said passage 234., Fh idnnderpressure issupplied to the casing 231 through moved toward 13 19; Ciiossheed72lj; The jet therrotationofthe' fingersebout theax es48,

"thethndiiit 5218 End thefeftiiih 239 bnii eu q tg i lpisition 1? 0; 1 51341 tially identical with the valve 219, is ,bperl I a v f 0' is? bp' ie e t control h -xpbr 's,

w th e' p tftoftheial e2l n eats the 'outletportf243 A conduit 245 conn .to a} port256finthelower end ofj the.cylinder Q valve casing illustrated Figs; and 5; ja 32; wi h? 7 v ,1 which hasbeen associatedja, lJ-shaped wire 1 1 P d 1 0 the pl m 5'23, and is engag be t l bf th 521ml 68; i d, -the ja e l o'v d arth raf 'eid; Terms 2; end 68 ere. c o sed, th s. i ing lend 1 g idin -i ii r-i Continued mql enmiihe is ja-rjcanse'sthe arrns 52and68 to rotete, and

to oarrywiththem the clamp members-49 and;

1 01 which y gee'jured, s idflamp memI-J ber's rotating b l t il ei e i 4- 8 ee fi The fingers 50. 411d: ,66 re, thus said fingers are cerried with the" clamp rnemt-x hers, said fingers res'pectively receiyeflwithin their notches the wire ends 37 .and 56 F111;

n i mo've i he wirel n s :86 a d 373-: 2 toward each other, and; eventually cross said wire ends. i As, the. jar 32 is moved toits 11 v t-iln-ztteinwar'dposition,the pertsf'essume thef positions illustrated in 6.

As the j m ant i state, the 13 54 carried by the fingerbO engages the vyalye} stem to move the valve- 179 into a ip osi v-j Y '1 tion in which the grooYelS O prov-idescoinmunication he tv'veen;theports.176Qend225; I

Fluid is thus supplidlthrough' theg line 174", 175, .176, 180,255,183,185,3gnd186.tqthe;

to the'rig'ht as ViewedfiinQEigs. ,5,v e, an

bec us fi'l e 'prov 'ibnzdds' 73 521. 41: n g r 7 7 5,-in counter clockwise rotation of; themern he 1 nd: i l k i r t on o the-meme sopandgea ar cour e; w rn iwi this id E5 1 clzinip, members, the parts} essnrningthe, posi ,-1Wh n; e m izhi v is, at Ire tih e has-be mmedam hei n nner above described, the rod 5 i s' in lowermost position; Said piston rod carries its ber 58,1,thus effecting corresponding mete 7 rotetio of the 1evers43 a dga9fr tmcc tii .1 1" i Q 1 ;S imu-l'taiieously with. the supply of fluid tothecyIinder 7 8, fluid under pressureflows anabutment member which,-in"the lower mostposition' of the piston rod 115, engages thelever20fifto", hold the same'in depressed position, whereliy the valve 204: is held in open position. Atthis time, the valve 1-23 is in'the position illustrated inFig. 14-, in

' which thepassage 196establishes communis cation between the branch 193 and the port through means .174, 175, 176, 1230,, 255 1 3, 1 4,190,193, 19 199, 200, 201,203, 209, and

- 2'10 to thevalvecasing2I1, thus moving the piston" val-ve 219' to the position opposite that illustrated in Fig, 14'. Such movement of the valve 219 establishes communication between thep'orts 2'16 and 212, and establishes communication between the ports 213 and 215. Fluidunderfl pressure is' thus 1 minted: to'fiow' through the line'1j74, 218, 217,

. 2'16,2r1 ,212,-'220, and 221 to force thepjistonj' V 114 tomove' upwardly in the cylinder113,the

atmosphere throughthe' line 223, 222, 213, 211,- mu 215'. a

fi uidf contained within said cylinder 113 above the piston'1'14 being expressed to the j the pi'ston iltrrioves -upwardly, the" block 142 (see Fig. 3'). releases the finger- 141, thus permitting the rock shaft 140 to.

' rotate in a clockwise" direction as viewed in 138 of the 1 Fig; 3, and permitting the stem 135" and head 137 to drop, the head 137 entering: the neck jar 132 to hold said jar against movement. Upward movement of said'.pis-

,to'n rod 115' carries with it the rack 116,

' whereby the pinion 112 is actuated to rotate the shaft 110 is translated, through the bevel the shaft the shaft 8"6 r'otates, it carries With' it the me ber 'an'djthesleeve82 (seeFigL s). The head 93 is likewise slightly rotated,

whereby the wire en ds'36 a nd 37ers engaged isthe 'sotcnes 96 and 97, respectively.1 .s'eonas'the bases ofthe'n'otches 96fand'97 engagethewireends, whereby the stiffness] of the W'ireopposes" rotation such rotation 01? the head is i s 'ii s ma speed. The relative movementofvthe sleeve 82 with respect to the,

' head 9 2 is translated, by the co-action' of the threads '83 with' the threaded element ',into

j rfitracti'le movement of the head 93, whereby; H

' of'v tihie enema I sleeve 82'with respect to the so clamp further relativemovement of the head 93 is preof the head 93,. I v U I arrested or re-" seeded,- while-the sleeve 82 continues to re;

res ar'e gripped orfclamped. between tongues 99 and .100 and the forwardend When the wires have been 7 $1 l id the hea'd93"isrotatedwith said- 1 2%: I i

The "arts are soproportionedthata full I upwar'c strokeof thepi'ston rod 115 and rack 116 will.eifectisubstantially one and onehalP revolutions of the shaft'86, whereby thewire ends36and 37 are twisted together the mann'er, and' to the degree, clearlyshown n' 'Fi s. 12 and'13r s the piston rod 115 moves upwardly, the I dog 146 engages the finger 141 to'insureinitiation of the clockwise movementof the rock shaft 140. Said dog 146 is yieldable, howfinger 141. I

Just before the piston contactsthe surface16l of the projection .160

rod 115 reaches the upper limit of its stroke, theabutment 163;

ever, and does not enforce movement of the Q of the member'1'5 1 (Fig. 4). Because of the shape of said surface, however, the re sult of such engagementlsa counter clockwise movement of the member 154-,asv1ewed in. Fig. 1, wherebyv the spring 156 is co-m- 1 pressed; andas soon as the abutment 163 has passed the projection 16D, thespring ,1 56re' turns .the element 154 to trated in Fig. 4.

the position illus- The meshing engagement ofthe pinion 112 Wit-h the teeth l19' of the rack 117 results in' downward reciprocation of saidracl 117 as the meshing engagement, of; the teeth 120 with the pinion 121, in clockwise i'otat'ionjof saidfl pinion' 121 Because of the. construction, f of the ratchet teeth 126 and- 127 and because ice. H

of the fact that the pinion 1i2lis loose on the the rack116, moves upwardly; ;Downward;

movement of the rack117 nesul'ts.becaus'eof 9,5

ste n 122,,the pinionl21-turns freely-with out affecting the stem l22'or the valve 123..

O1? 'course, as soon as the piston rod 151 startsupwardly,t he lever 206 is released, and.

the valve 204 is moved to. closed position by the spring 208.

Since the passage 225fi's closed'by the piston rod 115, however, the

' valve 219 will "be held inth'e position above described, oppositethat illustrated' in' Fig with the passage 225, thus establishing comm unicationbetween the source of fluidsupply andithe port 214v, asflfollowsz 174,218, 217

,110? Asg-the piston rod reachesthe uppe1"- limito'fits stroke, the passage 228Qregi'sters 227; 225,228, 224, and 214.; Thevalvef219 p is thusfn'iovedto the position illustratedin.

Fig.1 l, whereby fluid is supplied through the lin 174,. 218,217,21 211, 21s, and 22s to'the upper end of the cylinder 1 13 whereby downward movement of the piston 1144' initiate'd the lower end of the cylinder 113 being connected to the atmosphere through the line 221, 220, 212, 211, and215. Of course,

the stem 205 has a relatively sloppy li'tin the valve casing 202, whereby when the valve 20 1 is'clo'sed, pressure in the conduit 209 will bleed to the atmosphere.

As the piston 114 starts downwardly, the Lracl: 116* coopera tes with the pinion 112 to 'in a counter clockwise direction to release the wire 'ends from the slotsg9T and 98 (see Fig,

rotate the shaft llO ina clockvvise direction; f

thus rotating the shaftf86 and the head 93 The Wireends are .releasedfuponsub stantially one-fourth revolutionof the head 93. At substantially the mo'mentFWhen-the Wire ends are released fromLtheslots 96 and" 97, the abutment 163 engages the surface, 162;,-

l of the projection160tor0tate thefrockshaft 150 in: a counterclockwise directionaas viewed iniFiggiig' fSuchinovementx of the rock shaft if istrans'lated, bythe forkllfil, into-for 1 wvgtrd movement of; the housing 88w This movement is in:thenatureofj a-kick, the house-i ing being shifted quickly forward to engage:

with theprojecting wire ends 36 arid 37; and

As the the piston:rod 168 registersrwith the passage."

to bend them backwardly substantially-z into contact with the surface of thelj arf32. the pistonrod continues its movement downward ly, the abutment 163 inovespast,theprojec! tionv 1 60, and releases the same, the housing;

88 ]oeing returned to its initial positionw Clockwijserotation'ofthe pinion 112 pinion 121. As the'pinion12l is thus rotated, the ratchet teeth 126 2111(1127; 'engage,and the stem 122isrotated Withsaidpinion; A's the stem 122 rotates, the valve 123 being carried therewith, the fpassage196 is tmoved out-pfy registry with theibranch 19-3 and port 199;

and shortly after; the above described shiftmg of the housing 88, the passage 194 movesinto registry with the branch 191 and' the portfl97. Fluid is thussuppliedthroughthe line 174,175, 176180 255, 183, 184,190,191,

' y 194, 197, 22-9, and 230k) the valve casing 231,

whereby the piston valve 240 is moved'to the cylinder 166, as viewed 14,

siii fa ce of the dog146,(Fig. engagesthe;

finger 141 to rotate the rock shaft 140 in} a' counter clockwise direction tQlBVate'lthQStBHi 135 and head 137 toi eleaselthear 32, l the,

The fluid supplied to thelowe'r end of cylinder 166 forces'the piston 1677 upwardly; as vieiv ed Fig.14, whereby yoke173is moved idoivnwardlyland to the right as viewed injFigfi through thes1ot172to carry the 111332 across the platforin-flfi and into the stroke in this direction the passage, 237' in 234, whereby fluid is supplied through the line 174,218, 236,234, 233, and 232 tofthe upper end of the valve casing 231' as viewed} in Fig; 14;, it heing understoodthatcontinued "fleets, upward irno'vement of the rack 11? which, in turn, causes counter clockwise'rotation of the i tion of i Fig;

i 2;-In*'a"dev1ce ofjthefchafracterfidescrihe I iviret tingmechanism compr s ng a ni e e,- r

w rmer fss piston reat'lhes the 'liniit of mtlues er the valve 1 ammete he-g s 1 a sage 195 outfi of registry with the port l98fi The valveQis=thusshiftedtor'the'position 3 i I "illustrated fin] 1,4 in which ffiuid is supplied to} the" jnp e end of the" oylinder 166 through: the line 174,1218, 239,238; 231 44, v

ly, the passage .195 omes into registry 'witlri thebranch' 192'and the port 198', whereby fluid is? supplied'through the1ine174,=175, 176,

180, 255,183, 1 4,190, 192,195; 19 257,-{anfd 1 7 8 return. the valve 179 to. the position illustrated in Figs 14, In} this position, the groov'e i180: and tll Q bIiPlI IC-Jh 181fare in 'cofm j l niiini'caitionWith theexhaust po'r'it 177.3; Such i movement of the valve 179 m ers-a port 2'58 1 in the casing 9, thus ventingithe lovver i 1 part of aid casingand the conduit'257'tothe atmospherexn P v the port 199; 'ljhus', 'the valve casing 202 vented throughlthe line 201, 200, 199 196,"

"As thewpis'ton I 14 Teaches the lowed ofits troke,-the passage '196fis again brought I i into communication ivviththe branch -193 fand;

nd thespring 189=isperiniittedtoreturn the i i F thus' returnin i piston l87itothepositionil-lu'strated inFig!14,".Q

thetiross -headmto the posi-" At this time, the parts are all "'in""the{positions illustrated i jFigs.; Y

anotheiijarw. cla m asmy invent on and-5, and the machine isreadyTtO receive ilnfaidevice'ofthe character I,

mean eng'ageahlewith a pair of Wire ends "to" crosssaid lends, and a. twister head assoelated 1 With" Sa-1d JTieaDS, said twister head comprising an eleinent provided with two notches to laterally" rece ve *s'aid respective wire ends andinean's for clanip ngsaid wire,

ends; in saidmotcheseachgain trone wall of said slot, d means for' jrotating'said head mien pi'ovilded vvith a wire-r ra g i 1.

va si i tes shiftab Q to; eng ge ,PsainQvvithinfsaidrecessagainst oneWallof rotat ng said, ele;

the recess-and means, f Y

I 1 h Q' H 5 3.:In-a-de'vice otthe character described,

one end, asleeve associatedflwith saidlhead,

thereof osite; directions whereby a wire twistingi nechanism comprisingjavhead j "formed vvitljrra -circumferentiallyextending Wire-receiving slot opening forwardly at its means for"rotating,said -head',in -i0pposite: f I p direetions, means)" for effecting opposjitje relative axiali inovement betWeen sajid-head and sleeve Jupon'; lrelaftive', rotary movement I I wire received-Yin said slot is caused to clamped insaid'slot by said sleeve.

,4; In'a-deviceof the character-described, wire twisting, 'in-e'chanism' ,compr slngan .int ernallyathreaded; sleeve,- a head" mounted ,within saidisleeveandthreadedi for copera- 'tion with the threads, "of said, sleeve, said head being formed: Wlth' a, circumferential-1y extending wire-receiving slot, and means for rotating said sleeve in opposite directions.

.5-. In? a :device of the: class described, wire twisting mechanism icompris ng an nternal-f ly threaded sleeveQahead, a portion 'of said headbeing received withinsaid sleeve and" threaded for cooperationwith the threads oi said'sleeve, said head being provided, without said sleeve, witha circumferentially extending Wire receiving slot opening, at

twisting vmechanism comprising an-i1iternally threaded sleeve, ahead, a portion of said said. sleeveysaid head being provided, without sald sleeve, Witha circumferentially eX- tending wire receiving slot openingfat one -end,through the free end of sald head, means one end,througl1 the free end of said-head,

and means for rotating said sleeve in the direction of said one=endiof said slot wherebylsaidthreadedelements cause said head to- 'move inwardly axially of said,- sleeve to cause said sleeve to clampe wire in said slot. ,V 3 j l f6; [tn-a deviceofthe'classdescribed, wire head being received withinsaid-Isleeve and threaded; for cooperation with the threads of for rotating said sleeve in the direction of said one end of said slot whereby said thread-,

position.

threadedfor.cooperation with the threadsof ed elements cause said head to .moveinwardly axially of said sleeve to cause said" sleeve to clamp a wire in-said slot, and resillent' means forreturning said head toits initial 7 7. In a device of theclass described, wire twisting mechanism comprising "an internal: ly threaded sleeve, a head, a portion of said headbeing 'received' within said sleeve-and saidsslee ve,,,said head being, provided, without saidsleeve, with a circumferentially ex:

tending wire, receiving slot opening, at one end, through the free end of said.h-ead ,.a tori sion' spring engaging said' sl eeve andsaid, head and biasing said head toward its: po'sr tion of'm aximum projection from said sleeve, 7

and means for rotating said sleeve. I

'8. In a machine of the class described,"a,

, platform adapted to;support 'artic1esca'rry I gageablefby an article on said platform for crossing the ends of thewire carried by said -.ge tlie1-, and means for flattening ingsubstantially 'U-sliaped'wires, means ening'a substantially u shaped wire embracing it',i means actuated byjmo'vement otsaid'ar-o ticle in one direction on said platform to engage the ends-of said wire and cross said ends,

meansv for gripping said crossed Wire ends,

and meansdo'r rotating said gr'i to twistsaid wire ends together.

ticle intone directioncon fsaid 'p"latform pping' means -.].0.'-In a machine' ofthe'class platforni' adaptedlto support an article hav ing a substantially U-shaped wire' embracing 1t meansactuated' b' movement of sad ar-" y y engage the-ends'ot said wire and cross said;

ends, means for grippingsaidgeros'sed ends, means forrotatmgsaid grippingmeans to twist said wire ends together, means for flat" teningfsaidtwisted 'Wire ends against said article, and means for movingsaidarticlejin an opposite direction on; said platform.

11. In a maehine' of the "class described, a. platform adapted to support an articlehav ing a substantia'l-ly Uj-shaped wire embracing it, mean's'actuated by'movement of said article in" one direction on. said"platform to engage the ends ofsaid wire andcross said ends, meansactuated by suchlactuation of said means" to retract "said-crossing means frtm contact with said crossed ends, means.

for'gripping said crossed endsafteriretrao' tion' ofsa'id crossing-means, and means for rotating "said gripping-means to twlst said wire ends together.

12.;Inja; machine of: the eharacterfde 'scribedra platform adapted to support an article having a substantially Ushaped wire embraeing it, means actuated by movement of said -articlein one direction onsaid platformto' engage theends of saidiwire and cross said, ends,"means for gripping said crossed WlIei ends and, twisting said ends about each other, means actuated by operation of saidcrossing meansto operatejsaid its grippingan'd' twisting means, means forreturning said last-named operating means to initial} position, and "means actuated by 're-I. turn movement of said, operating means .to I

move said article-'a'wayji 'rom said twisting 'meansfif; I v c.

I8. In a machine of the .cliaraeterldescribed, a f'platformadapted to support an. article having. a substantially U-shaped wire embracing itg -niean's actuated bytjmovement of, said article in oneldirection on" said platform to engage the ends of saidwire' and cross saidends', ajtwister; head adaptedto grip said crossed w re ends, means actuated by operation "of sa'id crossing means to cause said twister head to grip 'saidwire ends'and to twist: the isame, and meanslac'tuated' by operation of said crossing means before ation ofjsaid head.

- 14.- In a machine of thecharacter described, a platform adapted "to support an article havinga substantially U-shaped Wire saidcrossing means to retract-1 5 the twistingactu- I.

' wishe embracing it, means; actuated by movement of said article in one direction on said plat-f forni ;to engage the ends of said .wire. and

said twister head to grip, said wire ends-and! to twist the same,means actuated by operationqof said crossing means, to retract-said cross, said ends, a; twister head, adapted 'to grip said crossed wireends, means actuated by operation of said crossing means to cause crossing means before the twistingactuation of said head, means forreturningthe operating means fol-said twister head to initial position, and means actuated by return move ment of sald operating means to move sald article away from said twister head.

l5.- In a machine of the character de scribed, a platform adapted to support an article having asubstantially U-shaped wire embracing it, a pair oi'pivotally mounted arms disposed inthe path of, movement of said article, a finger movable witheach of said arms, said fingers being adapted to engage said wireends and cross the same as'said arms are moved by said artlcle, a tw1ster head associated with said fingers, a fluid pres-' sure motor, control means for said motor including a valvej adapted tobe actuated by wire-crossing movement of said fingers, connections between said twister head and said motor, whereby actuation of said valve by said fingers causes said motor to'operate said twister head to twist said wire ends together,

and means actuated by saidmotor for shiftingsaid twister head axially to flatten said wire ends against said article.

16. In combination, a seat, for an article having a wire associated therewith, means'engageable with said wire for bringing theends f thereof into j uxtaposition, twister means eligageable with said positioned wire ends and means engageable with said article'toyhold operable .to .twist the same, and shiftable i said article rigidly in place duringthe'twi'sthaving a. wire associated therewith, means.

ing operation.

17 Incombination, aseat-for a receptacle engageable with said wire for bringing the ends thereof into juxtaposition, twister means engageable with said positioned wire ends and operable to" twist the same, and shiftable; means engageable in themouth of said recep tacle to hold said receptacle rigidly during the twisting operation. a

, in place 18;: In combination, a seat for a receptacle having a wire associated'therewith, means engageable with said .wire for bringing the ends thereof into juxtaposition, twister'means having awire associated therewith, means 5 ageable with' aid wire for bringing the:

engageable with said positionedwire ends and operable to twist the same, and a reciprocable plunger engageable in the mouth of said; receptacle to hold said receptacle rigidly, in

place during the twisting operation.

19. In combination, a seat for a receptacle ends thereof into j uxtapositi n; wister means engageable with, said positioned wiregends P unger a ing a h r pmd n t said-Wireendsa thereof by said twister means, a reciprocable lunger havinga head corresponding to thef :v size and shape of the mouth of saidreceptacle, means for projecting said plunger head into r v said receptacle mouth prior" to engagement 7 of saidtwister-means with said. wire head and means for withdrawing saidlfplunger eration of said flattening means.

a wireassociated therewith,-means for bringing the ends of Sftld' wire into uxtaposition,

means engagea'blewith said wireendsand 1 operable totwistthe-saine, andmeans'for' F ejecting-said article-from said platform;

2 2; Ina machine of the clas's described, a" j i platform for supporting an article having a wire associated therewith, means" forlbringing the ends of said wire intojuxtapos'ition, means engageablewith said wirei'endsja nd' operable to twistthe same, shiftable means head from said receptaclemouth afterfop-T engageable with said' article to hold the same i in place during-the twisting operation, and "ine'ans for. ejecting said article fromlsaid platform.

23. In a machine ofthe class described, a I

platform j for supporting an article having a wire associated therewith, power-operated means for bringing the ends of-sa'id wire into 1 juxtaposition,powereoperated means engage ablewith saidwireends and operable'to twist ithe same, power-operated means shift'able into engagement with said article to holdthe power-operated ,means forejecting said ararticle immediately before operation of said ejecting means. a V v p w r a 24. In combination, a seat for a receptacle?" havinga wire associated therewithytwist 'r tiele" from said platform, and means synchro-Q n-i zing said poweroperated means whereby I said holding means is caused to engagesaid article immediately before operation of b said twisting means, and is caused to release said" i the size and shapejofthe mouthofsaid 'recep} "17 tacle, means for projectingsaid plunger head into said receptacle mouth-prior toengages ment of said twister means snagire j head, andme ans for withdrawing saidpIung l nm-=said re pt c meuth. aft r 17?- disengagement of said twister means from 21. In a 'machin'efof theclass described, j I

aplatformforsupporting anarticle having vsame in place during theltwisting operation lfi means engageable with the ends of said wireand operableto twist the same, and a reciprocable'plungerengageable in the mouth of said receptacle :to holdnthe same in place during the twisting operation. 25. In am'a'chine ofthe class described, a platform for supporting an article having a Wire associated therewith; means engage-v ableiw'ith the ends of said wire and operable to twist the same; and means for ejecting said i article fromsaid platform.

26. Means for tying a Wire about an article, comprising means engageable with the ends of such wire and operable to twist the same,

a motor'fordriving'sjaid twisting means aind means, actuated by movement of such article on s'aid platform into 'cooperati've relation with saidtwister means, for energizingfsaid motor.

27.- Me'ans for tying a wire" aboiitan article, comprising power-operated means engagee JOSEPH P. i GLEQ j operated mea s; 

